Amber St Clair means to get on in life and despite a poor background knows she has the assets to do it. Husbands, lovers, prison and a liaison with King Charles II form a tapestry of apparently calculating ups and downs, although in fact the one love of her life, Bruce Carlton, is never far from Amber's thoughts.

Amber's adventures continue as she leaves home to attend the prestigious Galactic University. However, her studies are quickly interrupted by the arrival of a family member she's never met. This awkward family reunion only gets worse when she learns the dangers of inheriting the Atoms' name.

The final battle begins when the true villain, Lord Boomba, reveals his plan to enslave all the free worlds of the galaxy in a single stroke. It's up to Amber to stop Boomba's monstrous warships, yet there's one that stands in her way: her father's killer. It's a confrontation for the fate of the galaxy.

Devastated by the death of a family member, Amber 'borrows' a ship to chase down the aliens responsible. Meanwhile worlds away, charismatic King Yamoon is elected President of the United Worlds. However, at his inauguration the true villain behind the havoc in Amber's life reveals his sinister plan for the galaxy.

After being shot in the back, Amber's mercenary problems multiply as she struggles to understand why her family was attacked for a mysterious key. Help comes in the form of Galactic Guardian, Ace Armstrong. Outgunned, Ace retreats with Amber offworld against Amber's wishes to save her family. However, a confrontation ensues when they are tracked down for the key and Amber is faced with the death of an Atoms' family member.